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Finding the Fourth Proportional to 6,415,579.38, 8,853,499.29 and 3,515,080.26

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Solution

The fourth proportional to 6,415,579.38, 8,853,499.29 and 3,515,080.26 is: 4,850,810.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415,579.38 : 8,853,499.29 = 3,515,080.26 : x
  2. Step 2: Convert to fraction form
    6,415,579.38/8,853,499.29 = 3,515,080.26/x
  3. Step 3: Cross multiply
    6,415,579.38x = 8,853,499.29 × 3,515,080.26
  4. Step 4: Simplify right side
    6,415,579.38x = 31,120,760,586,203.01
  5. Step 5: Solve for x
    x = 31,120,760,586,203.01/6,415,579.38
  6. Step 6: Final answer
    x = 4,850,810.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.